基于残余应力增韧机制的陶瓷材料增强相的极限含量模型及应用

Journal of Applied Sciences ›› 2001, Vol. 19 ›› Issue (1): 73-76.

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Models for the Critical Volume Content of the Reinforcement Phase in Ceramic Materials Based on the Toughening Mechanism of Residual Thermal Stress and Their Applications

XU Chong-hai¹, DING Wen-lia ng², HUANG Chuan-zhen³, DENG Jian-xin³, AI Xing³

1. Department of Mechanical and Electronic Engineering, Shandong Institute of Light Industry, Jinan 250100, China;
2. Committee of the City Construction of Hekou District, Dongying 257000, China;
3. School of Mechanical Engineering, Shandong University of Technology, Jinan 250061, China

Received:1999-10-30 Revised:2000-02-28 Online:2001-03-31 Published:2001-03-31

Abstract

Abstract: Based on the toughening mechanism of residual thermal-stresses, a model is built for the calculation of the critical volume content of the reinforcement phase in ceramic materials when T_P> T_m. The model has been proved valid through its applications in SiC/TiB₂ ceramic material. Next, two models are established for the determination of the critical volume content of the reinforcement phase when the particle size of the matrix and the ratio of the particle size of the reinforcement phase and the matrix are considered. Models built here will find a practically application in the composition designing and the micro-structural designing of ceramic materials.

Key words: model, ceramic material, residual thermal-stress, toughening mechanism, critical volume content

CLC Number:

TQ174.4

XU Chong-hai, DING Wen-lia ng, HUANG Chuan-zhen, DENG Jian-xin, AI Xing. Models for the Critical Volume Content of the Reinforcement Phase in Ceramic Materials Based on the Toughening Mechanism of Residual Thermal Stress and Their Applications[J]. Journal of Applied Sciences, 2001, 19(1): 73-76.

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Models for the Critical Volume Content of the Reinforcement Phase in Ceramic Materials Based on the Toughening Mechanism of Residual Thermal Stress and Their Applications

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